We are about to have our first foray into the world of hen tending and are hoping to buy a coop off CL. I found this one http://cleveland.craigslist.org/grd/2376019526.html. What do you think? Good for the price? Also, and this might be a stupid question, can I keep them in a tractor like this during the winter? Our winters here in northeast Ohio can be quite harsh. Lastly, we plan on starting with 4 hens and at the most would have 6. He says it's big enough for 10 but I'm unsure. Thanks in advance for your thoughts!